http://blogs.technet.com/b/networking/archive/2007/05/03/why-won-t-my-domain-joined-vista-client-get-an-ip-address.aspxSince the Vista launch, I've had several incidents with Windows 2000 Domains (be cautious with Windows 2003 too!) where a customer would join up Vista clients into their production domain and find they can't get an IP address following the reboot afteren-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)http://blogs.technet.com/b/networking/archive/2007/05/03/why-won-t-my-domain-joined-vista-client-get-an-ip-address.aspx#3133466Tue, 07 Oct 2008 15:53:02 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:3133466hilde<p>Wow - we've seen similar issues with GPOs that apply &quot;non-default for W2k8/Vista&quot; NTFS permissions to C: and/or other drives and blocking access to those drives (access denied) even to admins of the box. &nbsp;Scary. &nbsp;Until one understands the issue.</p><div style="clear:both;"></div><img src="http://blogs.technet.com/aggbug.aspx?PostID=3133466" width="1" height="1">